Mon-Fri from 09:00 to 18:00,
A detailed buying guide: how to choose an air compressor with a gasoline or diesel engine.
This section covers air compressors with petrol engines that supply compressed air to pneumatic tools where there is no mains power. They are used on construction sites, in road and roofing work, in agriculture and in mobile vehicle service for pneumatic breakers, nail guns, paint sprayers and impact wrenches. The category is aimed at builders, tradespeople and mobile service crews. To learn how pneumatic tools work, read what pneumatic tools are and how they work.
Petrol compressors are usually piston units with belt drive and oil lubrication, which handle long working hours well. Single- or twin-cylinder and single- or two-stage models differ in air delivery and service life. See differences between direct-drive and belt-drive compressors.
They usually use four-stroke engines of 160–420 cm³ rated at 4–10 kW (5.5–13 hp). The larger the engine, the higher the pump output and the higher the fuel consumption. Read differences between two-stroke, four-stroke and diesel engines and engine displacement, power, torque and RPM: how to compare engine-powered equipment.
Intake air delivery is usually 250–1000 l/min, while actual output is roughly 30–40% lower. Compare it with the combined consumption of tools running at the same time, plus a 20–30% reserve. See how to calculate compressor air delivery.
Most models deliver a maximum of 8–12.5 bar, which is enough for most pneumatic tools. For heavy percussive tools, also check the pressure regulator and gauge. Read how to choose compressor working pressure.
The receiver on petrol compressors is usually 50–200 l: a larger tank smooths pressure fluctuations, while a smaller one is easier to transport. Wheels, a handle and a sturdy frame matter on site. See how to choose compressor tank capacity.
Besides a manual recoil starter, look for an unloader valve that eases starting under pressure, and sometimes an electric starter. The fuel tank is usually 3–6.5 l, enough for 1–3 hours of work. Read fuel, engine oil and two-stroke mix: how to choose and use them correctly.
Check the number of outlets, quick-coupler type and hose bore, usually 8–13 mm. A long hose causes pressure loss, so choose a suitable diameter. See how to choose an air hose and connectors.
Use a petrol compressor only outdoors or in a well-ventilated area, since the exhaust contains carbon monoxide and noise reaches 90–100 dB. Check the safety valve and wear ear defenders. Read how to use an air compressor safely, how to safely use internal-combustion-engine tools and equipment and how to choose hearing protection.
Regularly check the oil in the pump and engine, clean the air filters, tension the belt and drain condensate from the tank after every job. Read how to store and maintain an air compressor and how to choose spare parts for gasoline and diesel engines.
At ToolsArmenia you can compare petrol air compressors by air delivery, pressure, tank capacity, engine power and starting system and choose the right model for your pneumatic tools.
There are no products to list in this category.
